Shaft-collar.



G. A. DONAHUE.

SHAFT UOLLAR. APPLICATION FILED JULY 2 190B.

9%,463 a Patented May 25,1909.

To all om it may cm "em:

acoompw This invention in shaft Tho primary 'lm in y La provision 01" a 1 i ia meat to the 0:" ai cing to parts on said :2 Y place teristios of a col 'eniont olnlio liml invention residing in the: sinn ii A A device, its ol of LifiJlL as? in application of the sa'ino Lo ills sin: .i its; degree ellloisuoyfaml last, and re. p tioularly, the absence of :pJTJfILMl. pins or angularor pointed. 'WlIOiT-OD llll clothing of the workmen or others 111a lac caught. With refers-nos to the last mon-- tiolled feature of lhe invention, it is a matte:- of common knowledge that in many instances, Where the usizal Sl'l'fil collars are smployscl in fact-alias, serious injurylmsvoz' frequently results l from the catching of 1 clothing of the machine operator or visitors upon the projecting heads of securing: bol or screws fastening the collars to the ands l pulley shafting. 'l'his danger subsan tially removed by the present invention The novel details in the construction nd arrangement of the. parts oi my do Q V will be appaicnt from detail description hex-oinafter contained, when read in connection with like accompanying drawings forming a pihllihoroof and Whorein tho bofo ro mc-ntionod embodiment of my invention 1s illustraioll. In thodrawings, Figure 1' is an elevation of a section of shafting having tho collar applied thereto, Fig. 2 is an end View,

mg. rola't to lmonn'mnoiils 3 1s a similar View looking at tile opposito side of the collar, Fig. 4- :s a sectional View takefi through the pill fiery oi she oollai- 'and Fig. 5 is a seou'ional view longitudinally of the shaft.

Referring more s ings, wherein like rm nate corresponding views, A repi'esents the: may be considered 53o Patonzed may 25, 1909.

a looso pullly, or other equivalent part is :cl to no llllil again at axial movement: the shaft, by moans of bile collar B.

the Simi3 I provide an ap rturo a ugh and in this aperture a i will harm a stop pin b one and preventing entirely within the "o edges of" the pin 1 being-g tapered pu'ruoso as will presently apbs ooioin noted that the pm poituro a. ollo'w, having a periphery?) l) xa'lloreby the same is sub- $4M ziialljii-slia wd in cross swt'ion, provkl rim' annular way i). 'llm lll'mgos lonnon'l will (mill-a? op-vnings ll l'oftlw .lv (enlarged, as at (I, to permit the ennoe oi lilo l'ioall c oi Llio sto'; pin (i. In the l), and iormorl intormoliiato the flange-s transversely disposed lug or Wall F, either Sill!) of wixioli the head 0 of the is adapted to abut dependent upon ilo malmor oi appliw-tion oi the collar and rotation of ll-o sllai't A. Near the opposite of ihe lug; or wall F are springs G projecting into llio path oi the headed pin (1, out allowing a soil] lonl; space bot-ween tho and film lug or Wall to aoconmlodato wall. of lylw pin whim forced beyond the l s; .n he pol-pose oi the s ring .is perll s apparent, but l may add. $1841; in apply ii the collar to the shaft, the enlarged openin V 1 is alinod with the headed pin C to perroll the entrance ol tho head into the intgn'ior i' lilo collar, and the collar is'then tul-ned (l pm until the head 0 contacts one l logs Q, When the collar with a light fol-o0 is turned still further beyond. the 111g lDi/O Contact Wlth the ad acent suri nlion of Lilo shall A, one of which is its a return movement-of the ooll ag', t ms lOO applied to the collarto rota-teithe same in a l reverse direction against 'ahd to overcome the 5 ring (i. This spring, of course, nay be 0 any strength desired, but it is al solutely necessary only that it be sullicient to prevent the turning of tli ccollar on the shalt when the shalt is still and which might otherwise bc incident to any-unbalanced state of the collar, owing to the formation and attachment of the devices on itsinterior- By this construction, it will bcqapprcciated that I have provided acollar which answers the purposes required of a device of this ch aracter the same may he made at a trifling cost; it me y be applied or removed with ease and quickness; and no -gh'ojcctions, points, or sharp anglesare provided which might catch upon the aprons, skirts, orcralls, etc, of any persons standing near a running machine to which the device may be applied.

While l have herein illustrated one embodiment of my invention, it will be apparent that the invention may be embodied in other structures, dill'ering both in matters of detail and arrangement lrom that disclosed.

I claim: 7 l

1. In combination with a shaft and a projecting nirt carried thereby, a collar for the shaft ()1 snbstz'mtially U-shape in cross-secllo'l forming a concentrically disposed annular way, and means on the interior of the collar between the side flanges thereof arranged to directly engage the projecting part carried by the shall. i

12. in (,OlllblIHttlOIl with a shaft and a projccting part carried thcrcby, a collar lor the shaft of substantially U-shape in cross-sew tion forming an internal way, and means on said collar l cyecn the side llanges thereof arranged to cngagc the projecting part when turned in cilhcr direction in said way.

I in mmbination with a shaft and a projecting part carricd thcrcby, a collar for said shalt provided with a stop on its interior adapted to cngagc said projecting part, and mcans other than said cngagcmont between the said stop and projecting iart for normally n'cvcnlinp rotation ol the collar in a dirccthin op )ositc to its dircclion ol' engagemcnt with line shalt.

4, ln combination with a shall. and a projccling part carricd lhcrclry, a collar lor thc shall provid'wl Hill] a. stop on its interior adapicd Io cngagc said projccling part on the shall, and mcans in thc collar or normally preventing rotation lhcrcol in a dircclion opposite to its dir clion ol cngagcmcnt with tho shall, said incans comprising a spring: arraugcd in lhc path ol thc projecting part ollhc shall.

5. A collar ol lhc characlcr dcscribcd having a hollow inlcrior, a slop in said hollow inicrior, and a spring 1 hcrcin arrangcd near the stop, in combination with a shalt and a projccting part carried thcrcb arrz'tnged to coma ice jecting part carried thereby, a collar for the,

shaft having a periphery. and side lie-n es forming a way therein, and an abrupt wa in said way arranged to abut the projecting part carried by the shaft to cause them to m tote simultaneously.

8. A collar of the character described haw 1 ing a periphery and side forming a way therein, and a stop in said. way, in combination with a spring in said way arranged at a point separated some distance from said step in combination with a shaft and a pro jecting part carried thereby arranged to cooperate with said stop and sprin 9. A collar of the character described hav ing a periphery and side flanges forming a way therein, and a stop in said way, in combination with springs at the opposite sides of said stop arranged at separate points some distance from said stop in combination with a shaft and a projecting part carried thereby arranged to cooperate with said stop and springs. l

10. In combination with a shaft and a prcc jecting part carried thereby,4t collar havin on its interior a stop adapted to enga e eai projection in the rotation of the co lar or shaft, and a spring normally preventing a reverse rotation of the collar.

1 1. In combination with a shaft and a projecting part carried thereby, a collar rovided on its interior with a stop adapts to abut said projection in the rotation of the collar or shaft, said collar having side walls l ornicd with openings for the reception of the shalt, and one of said openings being enlarged to permit the entrance or" the rejection on theshaft into the interior of t re collar whcrcby said pro jeclion may rotate in the way lormcd in the collar between the periphery and said side walls thereof.

. 13. In combination wilha shall and a projccling part carried thereby, a collar rovidod on its interior with a stop adapte to abut said projection in the rotation of the collar or shaft, said collar having side walls lormcd with openings for the reception of the shaft, and one of said openings being enlargcd to permit the entrance of the rojeclion on the shaft into the interior of t io collar, in combination with a spring arranged in the path of movement of the projection on the shalt adapted to normally prevent a revcrse rotation of the collar.

13. In combination with a shaft, 2 proprojecting part carried hy the shift to efieet 10 jet-ting pert cztrriecl thereby, a, collar for the rotation of the collar with the shaft.

shell having a peripheral portion and side I testimony whereof I affix my signature flanges forming a way therein, the interior of 1n presence of two witnesses.

5 the peripheral portion being arranged where- GEORGE A DONAHUE by not to contact with the projecting part on I the shaft, and fixed means on the interior of I Witnesses: I the collar between the side flanges thereof ar- T1105. R.- HEATH, ranged to operate in conjunction with the JAS. H. MILANS; 

